I'v seen some gameplay videos and I'm glad that they added point and click interface. This makes game so much more playable. Sorry, but original tank controls almost made me mad when I played it the first time.

Well, adding something like that to GF Deluxe, would press the limits of ResidualVM quite heavily I'd say, since that demo was done in the Unreal (4?) Engine, which is quite a few years more advanced than GrimE.

But hey, if someone has the guts and know-how, it could be done, although, you'd be better of building an entirely new renderer from scratch, as you'll likely want to leave the 2.5D-concept entirely behind if you were to approach it that heavily. (Which would mean that there would be very little to reuse from ResidualVM).